—Do you know who the young man is beside the door? —A man himself Jason. A. calledB. call

问题补充：

—Do you know who the young man is beside the door?

—A man himself Jason.

A. called

B. calls

C. calling

D. being called

答案：

A. called

B. calls

(答案→)C. calling

D. being called

解析：考查现在分词做定语，a man和call himself是主动关系，句意：--你知道门旁边的年轻人是谁吗？--一个自称为Jason的人。选C。